摘要:
A method of producing an amorphous catalyst or catalyst precursor in the form of a powder having a surface area of from 0.1 m 2 /g to 50 m 2 /g which chemical composition comprises oxygen, carbon, hydrogen, optionally nitrogen, and at least a first and a second further elements, said method comprising: a. Generating an aerosol comprising a mixture of derivatives, said mixture of derivatives comprising at least one derivative per further element, each derivative being a derivative of at least one of said further elements, and at least one of said derivatives being an organic derivative, b. Diluting said aerosol by a gas, and c. Passing said diluted aerosol in a plasma generated between two electrodes, at least one of which being provided with a dielectric, thereby forming an amorphous catalyst or catalyst precursor on one of said electrodes.
摘要:
The present invention relates to a method of enhancing hydrophilicity of a hydrophobic polymer material, comprising: pre-treating the hydrophobic polymer material, comprising treating the hydrophobic polymer material with a first atmospheric pressure plasma discharge in a first atmosphere comprising ammonia to obtain a pre-treated polymer material, and treating the pre-treated polymer material with a second atmospheric pressure plasma discharge in a second atmosphere in which an aerosol of a carboxylic acid is introduced. A substrate is provided as well, the substrate comprising a hydrophobic polymer material having a modified interface, wherein the modified interface comprises carboxylic functional groups grafted on the hydrophobic polymer material, the modified interface having a contact angle with water, which, measured after immersion in water at 20°C for 3 days, is at least 25° less than a contact angle with water of the hydrophobic polymer material.
摘要:
The invention relates to a method of manufacturing a composite sheet, in particular a sandwich sheet, wherein the composite sheet comprises at least two outer metal layers (1,2) and at least one intermediate polymer layer (3) wherein the polymer layer comprises a thermoplastic polymer. The first aspect of the present invention by a method for manufacturing a composite sheet, in particular a sandwich sheet comprising the steps of: - providing at least a first and a second metal substrate for providing the outer metal layers (1,2) and at least one intermediate polymer layer (3); - coating at least one of said metal substrates with an adhesion promoter layer by plasma coating (4) at the inner side of the at least one metal substrate, wherein the inner side of the at least one metal substrate has contact with the at least one intermediate polymer layer, wherein plasma coating includes: providing a process gas, generating a plasma, injecting a precursor for providing the adhesion promoter layer into the generated plasma or plasma afterglow, moving or placing the at least one metal strip into the generated plasma or plasma afterglow and depositing at least in parts a plasma polymerized adhesion promoter layer on the surface of inner side of the at least one metal substrate; and - laminating the at least one intermediate polymer layer and the two outer metal layers to build a composite material (5).
摘要:
The present invention relates to a method of enhancing hydrophilicity of a hydrophobic polymer material, comprising: pre-treating the hydrophobic polymer material, comprising treating the hydrophobic polymer material with a first atmospheric pressure plasma discharge in a first atmosphere comprising ammonia to obtain a pre-treated polymer material, and treating the pre-treated polymer material with a second atmospheric pressure plasma discharge in a second atmosphere in which an aerosol of a carboxylic acid is introduced. A substrate is provided as well, the substrate comprising a hydrophobic polymer material having a modified interface, wherein the modified interface comprises carboxylic functional groups grafted on the hydrophobic polymer material, the modified interface having a contact angle with water, which, measured after immersion in water at 20°C for 3 days, is at least 25° less than a contact angle with water of the hydrophobic polymer material.